Eucomrnia ulmoides rubber的用法和樣例：
例句
- A Study on Extraction and Detection of Gutta in Tissue Culture of Eucommia ulmoides Oliv.
杜仲組織培養中杜仲膠的提取與檢測研究。 - In the late 1950s, the rubber ball was invented through constant research and improvement.It was actually made of gutta-percha, which resembled rubber.
到了十九世紀五十年代末，經(jīng)過(guò)研究和改良，發(fā)明了橡膠球，這種球實(shí)際是用杜仲膠制作而成的，杜仲膠類(lèi)似于橡膠。
